Best Game That You've Gotten For Free From A Friend?

Link's Awakening DX for the Gameboy Color

Magicite

None. I've never been gifted a game from a friend for any occasion. I've gifted before. I've stopped gifting. Its all for the best. Everyone can buy their own games they like. A gift based economy is something for the minds of super contributor club groups on steamgifts.

Dark souls 2 / orcs must die 2 complete / killing floor complete.

Uh, what's the definition of "best"? One that I liked/played the most? One that cost the most?
I liked Fallout: New Vegas and full DLCs the most and played it the most. Cost? Probaby Skyrim when it came out. Other ones of note: Prison Architect, Borderlands, DayZ, Rust, XCCOM: Enemy Unknown and Enemy Within, Morrowind, Anno2070.

Garry's mod

Nothing. I'm the only one among my friends that is active enough on steam to be in the habit of gifting friends games.

Spec Ops: The Line, thanks Egres SVK :33

Just thinking, what have I actually given to friends? Let's see...

Binding of Isaac

Guns of Icarus Online

Legendary

Borderlands 2

I think that's it. I feel kinda greedy now. ;_;

Dota 2.

Little Inferno and Borderlands 2

Well, it was in truth a package but... Quakecon Pack 2013! Came with Elders Scrolls 3, 4 and 6, All Dooms, All Quakes, Herectic, Hexen 1 and 2, Wolfenstein, Rage, Dishonored, etc.
Even "Commander Keen" was included! :)

Grandia III for the PS2. Wasn't even a birthday present or anything, he literally just said "Here I don't want this, you can have it." Original case, booklet, and mint-condition discs.

Deadpool + dlc

double dragon neon, skyrim , space engineers,call of juarez gunslinger, tom clancys chaos theory and conviction,borderlands 2, the secret world ,chronicles of reddick, demigod, fallout nv collection,l4d collction , super hexagon, terraria and thps hd , all these over the years man those are alot lololol

Risk of Rain (Actually is the only game that I've ever received from a friend as a gift, but it's a pretty good game nonetheless.)

half life 1, then it went on sale same day during this summer sale. I gave her mirrors edge though.

Defy Gravity, best game ever

Borderlands 2 on the PS3 near launch date (birth month is October). Still haven't touched it beyond first mission; kept telling myself to finish BL1.

Haven't touched that one either since around same time.

skyrim, and im not joking :P

Project Zomboid! =D

And i gave StarBound and a bunch of humble gifts to some of they.

The Forest

Lego Harry Potter~ [..and Tomodachi Life.]

Probably Spelunky or Volgarr the Viking :D

Galactic Civilizations III, playing it really made me love gaming again at a time I was getting super burned out. :)